It is a sin to not learn when one is young. It is a sin to be generous and philanthropic when one himself is indigent. To be angry and itch for a fight when unaided by one’s relatives is a sin. It is a sin to eat at the home of those who are unfriendly.

It is the careless tongue that breaks a friendship. Weak minded people will be broken if squeezed hard, as their moral fibre is not strong. When a student is caught in the safety net of books of wisdom, his sinful desires are broken. When one carries vengeance on an enemy in one’s heart, it breaks him.

Nanmani k Kadigai is a collection of moral aphorisms authored by poet Vilambi Naganar. It is thought that Vilambi is his village and Nagan was his name. There are 101 poems in Nanmani k Kadigai (Literally means 4 slivers of gems). It is generally dated to 4th Century AD.

Naanmanik Kadigai, is a collection of 101 poems written by Vilambi Naganar. This collection is considered to have been written at the same time as Silappathikaaram, around 2nd Century AD. All poems in this collection are advisory in nature. They contain 4 phrases connected by a common underlying meaning. Hence the name Naan (four) mani (gem) kadigai (fragment). Their meaning is direct and easily understood.